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Read The Bleepin’ Manual

Doodlin' Like a Boss

ZOMGISH TRANSLATION

The drawing annotation lets you doodle on the screen like you're some kinda digital Picasso. This is an in-app purchase that costs about as much as a highlighter pen (so basically: cheap). Once you've dropped the cash on drawing annotation, you can scribble all over the screen using the draw bar.

The draw bar shows up where the OnSong menu bar used to be & gives you a whole toolkit of brushes & erasers & whatevs. Here's the rundown from left to right, y'all.

For the full nerdy breakdown on how to draw stuff, peep our video tutorial.

Pan Tool

This tool lets you scroll & zoom around the song while you're in drawing mode. It toggles itself automatically if you've got Apple Pencil Integration turnt on & you poke the screen with your grubby finger.

Pen Tool

The pen tool is on by default & draws a single, totally opaque line when you pick it. You can make the pen fatter or skinnier using the size slider. Tap the pen tool again & it goes into ortho mode, which draws straight lines like you actually have a steady hand. Tap & hold the tool button to open the Ortho Threshold Menu. Out of the box, the pen tool uses black ink at 3 points. Pretty boring, honestly.

Using white color is like digital whiteout—covers up whatever's underneath. Both white & black flip their vibe if low light mode is on.

Highlighter Tool

The highlighter tool is basically a chunky square tip that slaps color at 50% opacity. Tap it again & boom—ortho mode for straight lines (because you apparently can't draw straight). Tap & hold to get to the Ortho Threshold Menu. By default, it's yellow ink at 24 points. You know. Highlighter stuff.

Eraser Tool

This eraser tool blasts away your artistic mistakes. Tap it when it's already selected & you toggle in & out of Ortho Mode for straight erasure lines. Tap & hold the tool button to open the Ortho Threshold Menu. Default eraser is 24 points & the color picker is ghosted.

Move Tool

This tool lets you slide your drawing around if the song content shifts & your masterpiece gets wonky.

Size Slider

This bad boy lets you resize whatever tool you're using. You can go from 1 pt to 64 points. Pro tip: 72 points = 1 inch. Tap anywhere on the slider & drag left or right to adjust. Tap the edges to fine-tune by one point. Each tool remembers its own size. You're welcome.

Color Picker

Pick a color for your drawing tool. Each tool remembers what color you picked last time. Options are black, red, orange, yellow, green, blue, purple, brown & white. Use white to whiteout PDFs or low light mode situations. You can also build & tweak a custom color palette using the Color Picker.

Undo

The undo tool takes you back before your last tool swap, size change, or color change. For example: draw with the pen tool & don't change anything else? Undo nukes all those strokes in one go. Tap a different color, resize, or re-tap the tool & boom—new undo checkpoint. They stack up like layers.

Layers

Layers pop into existence every time you swap tools, resize, or recolor. Wanna make a fresh layer while drawing? Just tap the color you're using—like dipping a pen in an ink well. New layer. Done.

Layers are clutch for scribbling annotations & toggling them on & off for teaching, practicing, or looking cool on stage. Tap the layers icon to open the Layers Menu & mess with visibility or edit your layers.

Redo

This is the opposite of undo. If you undo something & regret it, redo brings it back from the undo graveyard.

Done Checkmark

When you're finished doodling, tap the checkmark to save your beautiful mess & bounce back to the song viewer & menu bar.

When you're rockin' an Apple Pencil, OnSong auto-switches to drawing mode & grabs whatever tool you used last time. No extra taps needed—just start markin' up your docs in the Annotations Menu. Tap the screen with your finger & OnSong flips to pan mode. Draw without switchin' tools. It's basically magic. You can kill this behavior in Drawing Settings.

OnSong 2026 — Last Refreshed December 22, 2025